Finding the Fourth Proportional to 7,018.63, 9,685.91 and 3,875.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.63 : 9,685.91 = 3,875.02 : x
2. Step 2: Convert to fraction form
   7,018.63/9,685.91 = 3,875.02/x
3. Step 3: Cross multiply
   7,018.63x = 9,685.91 × 3,875.02
4. Step 4: Simplify right side
   7,018.63x = 37,533,094.97
5. Step 5: Solve for x
   x = 37,533,094.97/7,018.63
6. Step 6: Final answer
   x = 5,347.64